Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [100,4,Mod(21,100)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(100, base_ring=CyclotomicField(10))
chi = DirichletCharacter(H, H._module([0, 6]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("100.21");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 100 = 2^{2} \cdot 5^{2} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 100.g (of order \(5\), degree \(4\), minimal) |
Newform invariants
comment: select newform
sage: f = N[0] # Warning: the index may be different
gp: f = lf[1] \\ Warning: the index may be different
Self dual: | no |
Analytic conductor: | \(5.90019100057\) |
Analytic rank: | \(0\) |
Dimension: | \(28\) |
Relative dimension: | \(7\) over \(\Q(\zeta_{5})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{5}]$ |
$q$-expansion
The dimension is sufficiently large that we do not compute an algebraic \(q\)-expansion, but we have computed the trace expansion.
Embeddings
For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.
For more information on an embedded modular form you can click on its label.
comment: embeddings in the coefficient field
gp: mfembed(f)
Label | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
21.1 | 0 | −6.16125 | − | 4.47641i | 0 | 7.57154 | − | 8.22628i | 0 | −17.5417 | 0 | 9.57931 | + | 29.4821i | 0 | ||||||||||||
21.2 | 0 | −4.80168 | − | 3.48863i | 0 | −10.9094 | + | 2.44643i | 0 | 21.1171 | 0 | 2.54218 | + | 7.82402i | 0 | ||||||||||||
21.3 | 0 | −4.65969 | − | 3.38546i | 0 | 6.11255 | + | 9.36145i | 0 | 12.5176 | 0 | 1.90790 | + | 5.87192i | 0 | ||||||||||||
21.4 | 0 | 0.858402 | + | 0.623665i | 0 | −4.11879 | − | 10.3940i | 0 | 3.00616 | 0 | −7.99556 | − | 24.6078i | 0 | ||||||||||||
21.5 | 0 | 1.31881 | + | 0.958173i | 0 | −5.65710 | + | 9.64351i | 0 | −34.0141 | 0 | −7.52229 | − | 23.1512i | 0 | ||||||||||||
21.6 | 0 | 4.29280 | + | 3.11890i | 0 | 11.0903 | + | 1.41593i | 0 | 5.90251 | 0 | 0.357125 | + | 1.09912i | 0 | ||||||||||||
21.7 | 0 | 8.15261 | + | 5.92322i | 0 | −10.8981 | + | 2.49613i | 0 | 17.4845 | 0 | 23.0371 | + | 70.9009i | 0 | ||||||||||||
41.1 | 0 | −2.65908 | − | 8.18380i | 0 | −1.44907 | − | 11.0860i | 0 | 17.7526 | 0 | −38.0604 | + | 27.6525i | 0 | ||||||||||||
41.2 | 0 | −2.09563 | − | 6.44968i | 0 | −4.97322 | + | 10.0133i | 0 | −19.6435 | 0 | −15.3633 | + | 11.1621i | 0 | ||||||||||||
41.3 | 0 | −1.03984 | − | 3.20031i | 0 | 10.5263 | + | 3.76780i | 0 | −0.208499 | 0 | 12.6828 | − | 9.21457i | 0 | ||||||||||||
41.4 | 0 | 0.0294384 | + | 0.0906021i | 0 | −11.1716 | − | 0.442702i | 0 | 26.6009 | 0 | 21.8361 | − | 15.8649i | 0 | ||||||||||||
41.5 | 0 | 0.696421 | + | 2.14336i | 0 | −5.21584 | − | 9.88913i | 0 | −29.6874 | 0 | 17.7345 | − | 12.8848i | 0 | ||||||||||||
41.6 | 0 | 1.81740 | + | 5.59338i | 0 | 9.73578 | − | 5.49677i | 0 | 11.1886 | 0 | −6.13952 | + | 4.46063i | 0 | ||||||||||||
41.7 | 0 | 2.25129 | + | 6.92876i | 0 | −3.14340 | + | 10.7294i | 0 | −6.47483 | 0 | −21.0959 | + | 15.3271i | 0 | ||||||||||||
61.1 | 0 | −2.65908 | + | 8.18380i | 0 | −1.44907 | + | 11.0860i | 0 | 17.7526 | 0 | −38.0604 | − | 27.6525i | 0 | ||||||||||||
61.2 | 0 | −2.09563 | + | 6.44968i | 0 | −4.97322 | − | 10.0133i | 0 | −19.6435 | 0 | −15.3633 | − | 11.1621i | 0 | ||||||||||||
61.3 | 0 | −1.03984 | + | 3.20031i | 0 | 10.5263 | − | 3.76780i | 0 | −0.208499 | 0 | 12.6828 | + | 9.21457i | 0 | ||||||||||||
61.4 | 0 | 0.0294384 | − | 0.0906021i | 0 | −11.1716 | + | 0.442702i | 0 | 26.6009 | 0 | 21.8361 | + | 15.8649i | 0 | ||||||||||||
61.5 | 0 | 0.696421 | − | 2.14336i | 0 | −5.21584 | + | 9.88913i | 0 | −29.6874 | 0 | 17.7345 | + | 12.8848i | 0 | ||||||||||||
61.6 | 0 | 1.81740 | − | 5.59338i | 0 | 9.73578 | + | 5.49677i | 0 | 11.1886 | 0 | −6.13952 | − | 4.46063i | 0 | ||||||||||||
See all 28 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
25.d | even | 5 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 100.4.g.a | ✓ | 28 |
5.b | even | 2 | 1 | 500.4.g.a | 28 | ||
5.c | odd | 4 | 2 | 500.4.i.b | 56 | ||
25.d | even | 5 | 1 | inner | 100.4.g.a | ✓ | 28 |
25.d | even | 5 | 1 | 2500.4.a.c | 14 | ||
25.e | even | 10 | 1 | 500.4.g.a | 28 | ||
25.e | even | 10 | 1 | 2500.4.a.d | 14 | ||
25.f | odd | 20 | 2 | 500.4.i.b | 56 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
100.4.g.a | ✓ | 28 | 1.a | even | 1 | 1 | trivial |
100.4.g.a | ✓ | 28 | 25.d | even | 5 | 1 | inner |
500.4.g.a | 28 | 5.b | even | 2 | 1 | ||
500.4.g.a | 28 | 25.e | even | 10 | 1 | ||
500.4.i.b | 56 | 5.c | odd | 4 | 2 | ||
500.4.i.b | 56 | 25.f | odd | 20 | 2 | ||
2500.4.a.c | 14 | 25.d | even | 5 | 1 | ||
2500.4.a.d | 14 | 25.e | even | 10 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{4}^{\mathrm{new}}(100, [\chi])\).